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Australian Biological Resources Study

Checklist of the Lichens of Australia and its Island Territories
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References
Lecanora intricata (Schrad.) Ach.
  Lichenogr. Universalis 380 (1810); Lichen intricatus Schrad., J. Bot. (Schrader)1: 72 (1801). T: rarius in Hercynia, frequentibus in Silesiae Sudetis, Germany; holo: GOET, n.v.  
  Thallus verrucose-areolate to subsquamulose or dispersed-verrucose, greyish green to yellowish green, epruinose. Soredia absent. Prothallus not visible or blackish brown. Apothecia immersed to sessile, 0.5–1.5 mm diam.; disc blackish green to greenish brown, epruinose or slightly grey-pruinose; concolorous with the thallus, thin, becoming flexuose and excluded. Cortex hyaline, indistinct, inspersed with crystals, c. 10 µm thick laterally and basally. Amphithecium lacking crystals, densely packed with algae; algal layer continuous below hymenium. Parathecium hyaline, lacking crystals. Epihymenium green-brown to brown, c. 10 µm thick, with numerous small crystals; pigmentation and crystals soluble in KOH. Hymenium, subhymenium and hypothecium hyaline. Paraphyses sparingly branched and slightly thickened apically. Ascospores ellipsoidal, 9.0–15.0 × 4.5–7.0 µm. CHEMISTRY: Thallus and apothecial margin K–, C–, Pd–; containing usnic acid and zeorin.
  This species occurs in subalpine to alpine areas of south-eastern Australia (N.S.W. and A.C.T.) where it grows on exposed siliceous rocks. Also in New Zealand and widespread in the Northern Hemisphere.  
  Lumbsch & Elix (2004)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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